Create and validate custom Semgrep rules for detecting security vulnerabilities, bugs, code patterns, and standards using test-first methodology, conversation context for patterns and languages, plus taint mode support.
A Claude Code plugin marketplace from Trail of Bits providing skills to enhance AI-assisted security analysis, testing, and development workflows.
Also see: claude-code-config · skills-curated · claude-code-devcontainer · dropkit
/plugin marketplace add trailofbits/skills
/plugin menu
Codex-native skill discovery is supported via the sidecar .codex/skills/ tree in this repository.
Install with:
git clone https://github.com/trailofbits/skills.git ~/.codex/trailofbits-skills
~/.codex/trailofbits-skills/.codex/scripts/install-for-codex.sh
See .codex/INSTALL.md for additional details.
To add the marketplace locally (e.g., for testing or development), navigate to the parent directory of this repository:
cd /path/to/parent # e.g., if repo is at ~/projects/skills, be in ~/projects
/plugins marketplace add ./skills
| Plugin | Description |
|---|---|
| building-secure-contracts | Smart contract security toolkit with vulnerability scanners for 6 blockchains |
| entry-point-analyzer | Identify state-changing entry points in smart contracts for security auditing |
| Plugin | Description |
|---|---|
| agentic-actions-auditor | Audit GitHub Actions workflows for AI agent security vulnerabilities |
| audit-context-building | Build deep architectural context through ultra-granular code analysis |
| burpsuite-project-parser | Search and extract data from Burp Suite project files |
| differential-review | Security-focused differential review of code changes with git history analysis |
| dimensional-analysis | Annotate codebases with dimensional analysis comments to detect unit mismatches and formula bugs |
| fp-check | Systematic false positive verification for security bug analysis with mandatory gate reviews |
| insecure-defaults | Detect insecure default configurations, hardcoded credentials, and fail-open security patterns |
| semgrep-rule-creator | Create and refine Semgrep rules for custom vulnerability detection |
| semgrep-rule-variant-creator | Port existing Semgrep rules to new target languages with test-driven validation |
| sharp-edges | Identify error-prone APIs, dangerous configurations, and footgun designs |
| static-analysis | Static analysis toolkit with CodeQL, Semgrep, and SARIF parsing |
| supply-chain-risk-auditor | Audit supply-chain threat landscape of project dependencies |
| testing-handbook-skills | Skills from the Testing Handbook: fuzzers, static analysis, sanitizers, coverage |
| trailmark | Code graph analysis, Mermaid diagrams, mutation testing triage, and protocol verification |
| variant-analysis | Find similar vulnerabilities across codebases using pattern-based analysis |
| Plugin | Description |
|---|---|
| yara-authoring | YARA detection rule authoring with linting, atom analysis, and best practices |
| Plugin | Description |
|---|---|
| constant-time-analysis | Detect compiler-induced timing side-channels in cryptographic code |
| mutation-testing | Configure mewt/muton mutation testing campaigns — scope targets, tune timeouts, optimize long runs |
| property-based-testing | Property-based testing guidance for multiple languages and smart contracts |
| spec-to-code-compliance | Specification-to-code compliance checker for blockchain audits |
| zeroize-audit | Detect missing or compiler-eliminated zeroization of secrets in C/C++ and Rust |
| Plugin | Description |
|---|---|
| dwarf-expert | Interact with and understand the DWARF debugging format |
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npx claudepluginhub trailofbits/skills --plugin semgrep-rule-creatorBuilds multi-language source code graphs for security analysis: call graphs, attack surface mapping, blast radius, taint propagation, complexity hotspots, and entry point enumeration. Generates Mermaid diagrams (call graphs, class hierarchies, dependency maps, heatmaps). Compares code graph snapshots for structural diff and evolution analysis. Runs graph-informed mutation testing triage (genotoxic). Generates mutation-driven test vectors (vector-forge). Extracts crypto protocol message flows and converts Mermaid diagrams to ProVerif models. Projects SARIF and weAudit findings onto code graphs. Use when analyzing call paths, mapping attack surface, visualizing code architecture, triaging survived mutants, generating cryptographic test vectors, diagramming crypto protocols, formally verifying protocols, or augmenting audits with static analysis findings.
trailofbitsConfigures mewt or muton mutation testing campaigns — scopes targets, tunes timeouts, and optimizes long-running runs. Use when the user mentions mewt, muton, mutation testing, or wants to configure or optimize a mutation testing campaign.
trailofbitsAnnotates codebases with dimensional analysis comments documenting units, dimensions, and decimal scaling. Use when someone asks to annotate units in a codebase, perform a dimensional analysis, or find vulnerabilities in a DeFi protocol. Prevents dimensional mismatches and catches formula bugs early.
trailofbitsAudits GitHub Actions workflows for security vulnerabilities in AI agent integrations (Claude Code Action, Gemini CLI, OpenAI Codex, GitHub AI Inference)
trailofbitsAutomatically reviews and fixes Claude Code skills through iterative refinement until they meet quality standards. Requires plugin-dev plugin.
trailofbitsCreates language variants of existing Semgrep rules with proper applicability analysis and test-driven validation
trailofbitsSecurity code review skill based on Project CodeGuard's comprehensive security rules. Helps AI coding agents write secure code and prevent common vulnerabilities.
cosai-oasisHarness-native ECC plugin for engineering teams - 67 agents, 271 skills, 92 legacy command shims, reusable hooks, rules, MCP conventions, and operator workflows for Claude Code plus adjacent agent harnesses
affaan-mComprehensive skill pack with 66 specialized skills for full-stack developers: 12 language experts (Python, TypeScript, Go, Rust, C++, Swift, Kotlin, C#, PHP, Java, SQL, JavaScript), 10 backend frameworks, 6 frontend/mobile, plus infrastructure, DevOps, security, and testing. Features progressive disclosure architecture for 50% faster loading.
Jeffallanv9.44.1 — Patch release for Gemini environment/version detection and qwen auth gating. Run /octo:setup.
nyldnNext.js development expertise with skills for App Router, Server Components, Route Handlers, Server Actions, and authentication patterns
davepoon